TRX4M owners, want to make your little crawler more stable and perform better on the rocks? Adding weight down low is key, and these TREAL brass lower links are a perfect way to do it. This set includes all four lower suspension links, and they're made from solid brass. Why brass? It's heavy! Replacing the stock plastic links with these massively lowers your truck's center of gravity, which means less tipping and more traction when you're climbing over obstacles. They come pre-assembled with the rod ends and O-rings, so installation is literally a 5-minute job – just swap out the old ones. The quality is top-notch, and they give your TRX4M a more premium, capable look and feel instantly. If you're serious about crawling performance, this is one of the first and best upgrades you can make.